I love this idea. A Great parent communication book explaining the learning that occurs in various centers in your classroom - dramatic play, maths corner, library, block play, science, writing table, art table etc.
Using mosaic tiles in harmony with construction looks very open ended to me. The smooth, cold, delicate tiles compared to the durable, dented blocks could make for interesting exploration for the children. I remember being in my early childhood while my kitchen was being re-done and being fascinated with the tiles and all their properties, therefore, this activity really appeals to me.